The Mexican government said the flow of undocumented migrants arriving at its border with the United States had fallen by 56 percent since May.

The Mexican government announced on Sept. 6 that the flow of undocumented migrants arriving at its border with the United States had fallen by 56 percent since May, saying that it believes its strategy to curb illegal immigration is enough to avert President Donald Trump’s threatened tariffs on Mexican goods.

Foreign Secretary Marcelo Ebrard, citing U.S. Customs and Border Protection (CBP) data, said at a news conference that the number of illegal immigrants apprehended in August was 63,989, which is down from 144,266 in May. The numbers also included people who presented themselves at U.S. ports of entry and were deemed inadmissible.

In June, the United States and Mexico reached a deal to that would see an expanded implementation of the Migrant Protection Protocols (MPP), commonly known as the “Remain in Mexico” policy, and increased security at the southern border. This deal came about after Trump threatened Mexico with imposing a 5 percent important tariff on all goods coming from Mexico if the country did not take action to tackle the influx of illegal immigration at the U.S.-Mexico border. The tariff would have increased every month until it reached 25 percent.